Abstract: Objective:To observe the value of the fiberoptic bronchoscope in diagnosis and treatment of the bronchus foreign body. Methods:Twenty-four cases of bronchus foreign bodies which were diagnosed and treated bCy the fiberoptic bronchoscope were reviewed and analyzed retrospectivedly. Results:The main clinical manifestations were cough,expectoration,fever,hemoptysis,dyspnea,decreased breath sound and rhonchi of inspiration phase.Twelve cases were misdiagnosed out of our hospital,among which,4 were misdiagnosed as lung cancer,4 as pneumonia,2 as tuberculosis,1 as bronchial asthma and 1 as tuberculosis pleurisy.The foreign body in 17 cases was located in the right side of the lung and 7 cases in the left side;14 bronchus foreign bodies were of animality sort and 6 cases vegetality sort.All the foreign bodies were extirpated by the fiberoptic bronchoscope. Conclusions:The bronchus foreign body is easy to be misdiagnosed.The fiberoptic bronchoscope is of great value in diagnosis and treatment of the bronchus foreign body.